Explain why this is or is not a probability distribution. x 1 2 3 4 P(x) 0.2 0.1 0.4 0.2

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asked Mar 8, 2018 154k views

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Bluearrow · Answer 1 · 2018-03-12T22:23:00+0000

The sum of p(x) over all possible values of x is 1, that is

∑jpj=1where j represents all possible values that x can have and pj is the probability at xj.

yes it is probability distributionall sum is 0.9
all probability between 0 and 1

Explain why this is or is not a probability distribution. x 1 2 3 4 P(x) 0.2 0.1 0.4 0.2

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